About device initialization | Velocity Micro MS-3 guide

Chapter 1: Introduction

Microscan MS-3 Laser Scanner Device Driver User Guide

About device initialization

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About this topic

Opening communications

Homing motors

Setting profile parameters

Setting state and memory variables

Related topics

When working in device diagnostics software, you are often required to initialize the device. This topic explains why device initialization is necessary.

Initializing a device opens communications with it. For example, if the device is connected with a serial cable, the COM port is opened, and if the device is connected with an Ethernet cable, the TCP/IP socket is connected.

Initializing a device homes motors that do not track their position along their line of travel. Homing a motor moves it until it triggers an event, called a home flag. This tells the motor its location.

The motors on some devices automatically move to their home positions when the device is turned on. The motors on other devices must be initialized to be homed.

Initializing a device applies relevant parameters set in the device’s profile.

Most devices store variables in software or firmware. Initializing a device sets these variables to their initial values.

For information about...	See...

Using Diagnostics	❑ “About diagnostics” on page 11
	❑ “Opening diagnostics” on page 12

Workflow for configuring devices	“Adding devices” on page 10

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Contents

July VWorks3 and BenchWorks Microscan MS-3 Laser Scanner Device Driver User Guide Copyright 2007 Velocity11 Contents Table of Contents Introduction1 Related topics Who should read this guideJob roles About Velocity11 user guides Where to find user information Online helpAbout this topic To open the online help Printing and searching More information Also read What this guide coversDriver version What this guide does not cover Device file defined About devicesDevice defined About device drivers What functions do the device drivers provide? Related topics IWorks interface To install device drivers Installing device driversProcedure To add devices to a device file Adding devices Background About diagnostics To open Diagnostics Opening diagnostics If you are using VWork3 or BenchWorks software Related topics Profiles defined Stored settingsAbout profiles To set the general properties for a device Setting the properties for a deviceBefore you start Setting general properties Setting location properties Setting teachpointsTo set the teachpoint properties To set the barcode readers property Setting the Use linked location To link the Sub Process task to the correct sub-process Adding and linking Sub Process tasksSub Process task defined Adding a Sub To link a Sub Process task to a device Where scripts are written Using JavaScript to set task parameters Output file Plug-in defaultAbout reader output files Example Profile default output file name Filename suffixes Overriding output file names with tasks About device initialization Homing motors Setting profile parameters Introduction Microscan MS-3 Laser Scanner Workflow Workflow for configuring the Microscan MS-3 Laser To create an Microscan MS-3 Laser profile Creating a Microscan MS-3 Laser profileBefore you start About Microscan MS-3 Laser tasks Setting Microscan MS-3 Laser task parameters To set the Scan bar code task parameters To initialize the Microscan MS-3 Laser Operating the Microscan MS-3 Laser with diagnosticsScanning a barcode To scan a barcode Managing profiles To manage Microscan MS-3 Laser profiles Managing Microscan MS-3 Laser profiles Related topics